The Circuit Breaker, cataloged under National Stock Number 5925-00-552-2649, is classified within Federal Supply Class 5925 (Circuit Breakers) of the Electrical and Electronic Equipment Components group. The manufacturer of record is Cae Usa Inc.. Government technical data includes 30 specifications, cited from the U.S. Government catalog. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5925-00-552-2649 |
| Primary Part Number | CB12H03 |
| Item Name | Circuit Breaker |
| FSC / FSG | 5925 / 59 — Circuit Breakers |
| Manufacturer | Cae Usa Inc. |
| Status | ACTIVE |
| Reset Method | MANUAL |
| Internal Trip Release Configuration | SERIES TRIP SINGLE LOCATION |
| Operating Voltage Type and Rating Per Pole in Volts | 400.0 DC SINGLE LOCATION |
| Mounting Facility Type and Quantity | 2 THREADED HOLE(S) |
| Actuator Position Designation | AT POLE ONE |
| Switch Terminal Type | TAB, SOLDER LUG |
| Body Style | SINGLE POLE TYPE |
| Switch Voltage Rating and Type in Volts | 240.0 AC AND 50.0 DC |
| Ultimate Trip Rating of Continuous Current Rating Per Pole in Percent | 125.0 SINGLE LOCATION |
| Distance Between Centerlines of Mounting Facilities Parallel to Body Length | 2.750 INCHES NOMINAL IN |
| Switch Location and Position Designation | INTERNAL AT POLE ONE |
| Circuit Protection Type | OVERCURRENT SINGLE LOCATION |
| Body Width | 0.984 INCHES NOMINAL IN |
| Pole Quantity | 1 |
| Mounting Surface to Terminal End Distance | 3.234 INCHES NOMINAL IN |
| Maximum Continuous Load Current Rating Per Pole | 300.0 MILLIAMPERES DC SINGLE LOCATION |
| Trip Release Characteristic | TIME DELAY SINGLE LOCATION |
| Maximum Interrupting Capacity Current Type and Rating Per Pole in Amps | 1000.0 DC SINGLE LOCATION |
| Nominal Thread Size | 0.138 INCHES IN |
| Body Length | 3.719 INCHES NOMINAL IN |
| Trip Delay Time in Seconds Per Rated Continuous Current | 2.500 MINIMUM AT 200 PCT AND 8.500 MAXIMUM AT 200 PCT SINGLE LOCATION |
| Manual Actuator Type and Quantity | 1 TOGGLE |
| Switch Current Rating and Type in Amps | 2.5 AC AND 1.0 DC |
| Inclosure Protection Type for Which Designed | MOISTURE RESISTANT AND FUNGUS RESISTANT |
| Switch Contact Arrangement | SINGLE POLE, DOUBLE THROW |
| Thread Quantity Per Inch | 32 |
| Material | PLASTIC CASE |
| Actuator Function | TRIP-RESET |
| Terminal Type and Quantity | 2 THREADED STUD |
| Main Contact Tripping Mechanism Type | TRIP FREE |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | Possible hazard — SDS may be required (DLA HMIC P) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| CB12H03 | Cae Usa Inc. (USA) |
| Reference | Meaning |
|---|---|
| CB12H03 | 5/9 Secondary reference Raytheon Technical Services Company |
| 506403M63 | 3/9 Design control — primary reference Eaton Corp Heinemann Products Commercial Controls Div |
NSN 5925-00-552-2649 is a Circuit Breaker, manufactured by Cae Usa Inc., classified under FSC 5925, Circuit Breakers. Status: active.
NSN 5925-00-552-2649 has 1 manufacturer part number on file: CB12H03 (Cae Usa Inc.).
Key specifications for CB12H03: Reset Method: MANUAL; Internal Trip Release Configuration: SERIES TRIP SINGLE LOCATION; Operating Voltage Type and Rating Per Pole in Volts: 400.0 DC SINGLE LOCATION; Mounting Facility Type and Quantity: 2 THREADED HOLE(S). 30 specifications are documented in the U.S. Government catalog.
Possible hazard — SDS may be required (DLA HMIC P). Hazard information on this page is shown exactly as it appears in the DLA record.
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-16.
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.